The rise of ecological conscience among urban Indians has resulted in the building momentum behind Rain Water Harvesting. This relatively straightforward but ingenious technology helps us get good quality water that can be used for many domestic needs like washing, bathing, flushing toilets, gardening, etc.
Rain Water Harvesting means collecting water from where it falls and storing it for future use. This need not even happen on an industrial scale. Even when done on a small scale it will still be ecologically responsible and financially prudent. Rain water harvesting ensures judicious use of a resource which would have been otherwise wasted.
In urban context, Rainwater Harvesting can be done in either from the rooftop or from the ground around the home.
Rooftop – The rain water falling on the rooftop is collected through a pipe and then stored in storage tank or sump.
Ground – If there is space around the home, the rainwater runoff is collected and stored in a sump.
Alternatively the water is also directed to a shallow catch basin for groundwater recharge. In both methods, a first rain filter is used to separate the runoff that contains dirt and dust. Later another filter is used to remove leaves and other debris before water enters the storage.
The Rain Water Harvesting need not be all about function. With application of little ingenuity it can become a designer addition to the décor. Integrating it with the garden is the most practical idea.
Rainwater storage containers are the perfect opportunity to unleash your creativity by using it as a blank canvas for your painting and creative prowess. You can even choose an unusual storage tank made with earthenware to add charm to your garden.
The industrial water pipe can be replaced by a metallic rain chain ( ‘Kusar doi’ of Japanese origin).
This is hung to the corner of the roof and the water spirals down on it into the storage tank. This can also direct the flow of the water into earthenware or ceramic bowl that overflows into the rock covered catch basin for groundwater recharge.
Though it demands an initial investment, in the long run, rain water harvesting can be a value addition both in terms of utility and beauty. As the monsoons are around the corner, is Rainwater harvesting on your to –do list?